DNA Fingerpainting

1. DNA is unique for everyone. The only exception is if a person has what? An identical twin.


2. What are DNA fingerprints used for? Determining a biological mother or father to identifying the suspect of a crime.


3. What “crime” was committed? The lollipop was stolen.


4. What bodily fluid was removed from the “crime scene” to get DNA? Saliva.


5. What does a restriction enzyme do? Cut the molecules of DNA to split them apart.


6. What is agarose gel? A thick porous jello like substance. Molecular strainer.


7. What is electrophoresis? The process of moving molecules in an electric current.


8. Smaller fragments of DNA move ____________ than longer strands? more easily


9. Why do you need to place a nylon membrane over the gel? So that you can pick up the small sheet of DNA.


10. Probes attach themselves to __________ DNA fragments on the nylon membrane.


11. Which chemical in your “virtual lab” is radioactive? Probz


12. Sketch your DNA fingerprint. It looks like a fat bar code.



13. Based on your DNA fingerprint, who licked the lollipop? Honey Sweet




Click on the Link “DNA Workshop” (if this link won't load, scroll down to the bottom where it says "try the non-java script version)
Once you’re there, go to the link “DNA Workshop Activity” and practice with DNA replication and protein synthesis.

Browse the DNA Workshop site.


14. What kinds of things could you do at the DNA workshop? You were able to replicate DNA and go through protein synthesis.


Title: Chemicisists create DNA Assembly Line
Author/Date: Science Daily/MAY2010

The article speaks about 3 different DNA machines determining the sequence of DNA. These scientists change the sequences of the machines and are able to prevent the cargo in them chain to be transported. These machines create DNA and replicate it as well.

MITOSIS VIRTUAL LAB


1. Which stage does the following occur
Chromatin condenses into chromosomes Interphase
Chromosomes align in center of cell. Metaphase
Longest part of the cell cycle. Prophase
Nuclear envelope breaks down. Prometaphase
Cell is cleaved into two new daughter cells. Cytokenisis
Daughter chromosomes arrive at the poles. Telophase

2. The colored chromosomes represent chromatids. There are two of each color because one is an exact duplicate of the other.

How many chromosomes are visible at the beginning of mitosis? 46

How many are in each daughter cell at the end of mitosis? 46

The little green T shaped things on the cell are: centrioles

What happens to the centrioles during mitosis? Protein spindles form and move to the other side of the cell.